Tomcat Native 6 Remote Debugging (JPDA)

[Gregor Schneider <rc...@googlemail.com>]

Hi guys,

we're running Tomcat on Debian on port 80 using Tomcat Native (JSVC).

Now I'm wondering wether it's possible to get remote debugging working here.

I've adapted the the startup-script as follows:

<code>

#!/bin/sh
export LD_LIBRARY_PATH=/home/tomcat/www/bin/tomcat-native-1.1.3/jni/native/.libs
JAVA_HOME=/usr/lib/jvm/java-1.5.0-sun
CATALINA_HOME=/home/tomcat/www/
DAEMON_HOME=/home/tomcat/www
TOMCAT_USER=tomcat

# for multi instances adapt those lines.
TMP_DIR=/var/tmp
PID_FILE=/var/run/jsvc.pid
CATALINA_BASE=/home/tomcat/www

if [ "$2" = "jpda" ]
then
        JPDA_OPTS="-Xdebug
-Xrunjdwp:transport=dt_socket,address=8787,server=y,suspend=n"
fi

CATALINA_OPTS="-Djava.library.path=/home/tomcat/www/bin/tomcat-native-1.1.3/jni/native/.libs
$JPDA_OPTS"
#CATALINA_OPTS=""

CLASSPATH=\
$JAVA_HOME/lib/tools.jar:\
$CATALINA_HOME/bin/commons-daemon.jar:\
$CATALINA_HOME/bin/bootstrap.jar

case "$1" in
  start)
    #
    # Start Tomcat
    #
    #$DAEMON_HOME/src/native/unix/jsvc \
    echo "Starting tomcat"
    $DAEMON_HOME/bin/jsvc \
    -user $TOMCAT_USER \
    -home $JAVA_HOME \
    -Dcatalina.home=$CATALINA_HOME \
    -Dcatalina.base=$CATALINA_BASE \
    -Djava.io.tmpdir=$TMP_DIR \
    -Dlog4j.configuration=log4j.xml \
    -wait 10 \
    -pidfile $PID_FILE \
    -outfile $CATALINA_HOME/logs/catalina.out \
    -errfile '&1' \
    $CATALINA_OPTS \
    -cp $CLASSPATH \
    org.apache.catalina.startup.Bootstrap
    #
    # To get a verbose JVM
    #-verbose \
    # To get a debug of jsvc.
    #-debug \
    exit $?
    ;;

  stop)
    #
    # Stop Tomcat
    #
    echo "Stopping tomcat"
    $DAEMON_HOME/bin/jsvc \
    -stop \
    -pidfile $PID_FILE \
    org.apache.catalina.startup.Bootstrap
    exit $?
    ;;

  *)
    echo "Usage tomcat.sh start/stop"
    exit 1;;
esac

</code>

netstat shows me that tomcat is listening on port 8787, however, when
connection from within Eclipse (Ganymed), it tell's me "Failed to
connect to remote VM. Connection timed out".

tcp        0      0 0.0.0.0:8787            0.0.0.0:*
LISTEN     6780/jsvc.exec
tcp        0      0 0.0.0.0:21              0.0.0.0:*
LISTEN     2328/vsftpd
tcp        0      0 10.170.202.3:443        0.0.0.0:*
LISTEN     6780/jsvc.exec
tcp6       0      0 :::8009                 :::*
LISTEN     6780/jsvc.exec
tcp6       0      0 :::80                   :::*
LISTEN     6780/jsvc.exec

Now I'm wondering:

- Is it a problem with the native wrapper that it can't cope with
remote-debugging?

- Is it that we're running on port 80, but eclipse requires port 8080
? (haven't found anything to specify a port in Eclipse anyway)

Has anybody got that combination running ever before?

Tomcat-version is 5.5.20 btw.

Cheers

Gregor
-- 
what's puzzlin' you, is the nature of my game
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